optimal mixing within the process industry.
Transcription
optimal mixing within the process industry.
OPTIMAL MIXING WITHIN THE PROCESS INDUSTRY. Scanpump Solutions for Process Industry. www.scanpump.com 1 SCANPUMP SCABA agitators System DA - Degree of Agitation Application Know-how for Optimal Mixing What is the aim of agitation? For Scanpump it is ”To attain the customers’ wanted process result by the most costeffective solution”. Choosing and designing agitators is related to the process in which they will operate. Many factors affect the process and mechanical aspects of the design procedure. Important considerations are type of process, type of liquid, volume, the shape of the tank etc. In some applications the density, viscosity and solid content are the dominant factors. Our long experience, our knowledge of the processes and the ability to use this knowledge in our own design programme have given even more effective agitators for all kinds of mixing. The demand to acheive a perfect result is to get an optimal liquid motion for the specific process. Through research and theoretical calculations we have developed a correlation between the liquid’s surface velocity and what we call Degree of Agitation - DA. This and the choice of impeller is the foundation to decide the demand of the mixing for different processes. Benefits Technical Features Process guarantee: Desired mixing result obtained High Flow Propellers: Better mixing, less vibrations, minimises forces and power consumption Cost effective: Minimum power needed Sealing: Maintenance work without emptying the tank Easy service: Designed for minimised downtime and maintenance Modular system: Same Modular System for all agitators Support: Our specialists will ensure best mixing result No bottom bearing: Minimises maintenance Design Criteria Liquid / Liquid Miscible liquids Depending on the medias involved, they can be classified into three groups: liquid/liquid, liquid/particles and liquid/gas. Other kinds of application are also available but not presented here. For the liquid/liquid processes the design criteria is a certain amount of Liquid Motion. The suitable impeller is the patented SCABA High flow Propeller type 3SHP. It revolutionised the market by its ability to lower the power need drastically. It suits both to side and top entry agitators. Further development of the original 3SHP1 has given 3SHP18 mainly used in low viscosity medias and 2SHPD for high viscosity. High Flow Propeller 3SHP1 High Flow Propeller 3SHP18 - Keeping liquid homogeneous / Blending Viscosity 1-5000 mPas. - Keeping liquid homogeneous - Blending Viscosity 1-10 000 mPas. Chemicals, Juice, Milk, Sugar, Oils, Soap, Plastics,Paint, Latex, Lime, Sugar solutions, pH-adjustment, Wastewater... 2 - Keeping liquid homogeneous Viscosity 10 000 - 1 milj. mPas or up to paste consistency. Oils, Latex, Lime slurry, Cream, Paint, Glue, Grease, Youghurt... Double acting High Flow propeller 2SHPD - Heat transfer Heating or cooling Viscosity 1-5000 mPas Heating of Fats, Veg. oil & food, Glue, Cooling of cream, ethanol... SCANPUMP SCABA agitators SCABA Degree of Agitation - DA Degree of Agitation 1 2 3 4 6 8 10 Description Very mild Mild Medium Good Strong Very strong Violent Surface velocity Invisible Weak Visible Good Strong Very strong Violent Process Flocculation Flotation Keeping liquid homogeneous Blending Blending Heat transfer Blending Heat transfer Solids suspension Dissolving Leaching Polymerisation Crystallisation Blending Solids suspension Dissolving Leaching Poymerisation Dispersion Fermentation Solids suspension Dissolving Leaching Flocculation Keeping liquid homogeneous Flotation Liquid / Particles Liquid / Gas Suspensions of particles For the liquid/particles processes the design criteria is a certain amount of Liquid Motion. The suitable impeller is the patented SCABA High flow Propeller type 3SHP. Degree of suspension 1 2 3 Description Homogeneity Most particles off bottom All particles off bottom Full suspension ~ 30% ~ 50% ~ 90% Design criteria in these processes are Shear forces and Liquid Motion. The patented special turbine SRGT with its unique properties is the optimal impeller. This turbine disperses more gas before flooding which generates higher masstransfer. Furthermore, no power drop occurs when gased. Gas Dispersing Turbine SRGT High Flow Propeller 3SHP1 - Solids suspension and slurries - Dissolving - Crystallisation and polymerisation - Leaching Viscosity 1 - 10 000 mPas Basic chemicals, Lime, Sugar and other crystals, Iron ore, Copper ore, Dressed ore... High Flow Propeller 3SHP18 - Powder draw down Viscosity 1 - 10 000 mPas Lime, Aluminium sulphate, Soda ash, Urea, Starch, Magnesium sulphate, CMC, Bentonite, Polymers... - Gas dispersion - Fermentation - 3-phase system Viscosity of liquids 1 - 5000 mPas CO2 in CaCO3 slurry, Mash solution, H2 in veg. oil, Gypsum, Basic chemicals... 3 SCANPUMP SCABA agitators Process Guarantee, Service, Maintenance and Local Support Process Guarantee Scanpump has an extensive service network so when your agitator requires service, Scanpump will be there to get it up and running again. Proper maintenance is critical to the life of any product. Scanpump's factory trained service representatives can keep your agitator running like new. Local Support All Scanpump's products are sold through a world-class sales and service organization. Local support is always available to help you with your needs. Main office Sweden ABS Scanpump AB Tel. +46 31 83 63 00 Fax +46 31 16 79 14 info@scanpump.com www.scanpump.com Subsidiaries Denmark ABS Scanpump A/S Tel. +45 48 17 11 10 Fax+45 48 17 19 11 info@scanpump.com www.scanpump.com France ABS Scanpump AB Tel. +33 4 72 31 00 06 Fax +33 4 78 05 57 74 info@scanpump.com www.scanpump.com Germany ABS Scanpump AB Tel. +49 6257 9317 0 Fax +49 6257 9317 99 info@scanpump.com www.scanpump.com Great Britain ABS Scanpump AB Tel. +44 1293 744 836 Fax +44 1293 543 392 info@scanpump.com www.scanpump.com Subsidiaries, ABS Group Austria Tel. +43 2236 642 61 Fax +43 2236 642 66 www.absgroup.com Finland Tel. +358 7 5324 0300 Fax +358 9 55 80 53 www.absgroup.com Netherlands Tel. +31 30 242 56 78 Fax +31 30 241 03 46 www.absgroup.com Norway Tel. +47 67 55 47 00 Fax +47 67 55 47 50 www.absgroup.com Group head office ABS Group Tel. +46 40 35 04 70 Fax +46 40 30 50 45 info@absgroup.com www.absgroup.com South and North America Brazil Tel. +55 41 3227 8100 Fax +55 41 3348 1879 www.absgroup.com USA Tel. +1 203 238 2700 Fax +1 203 238 0738 www.absgroup.com Asia Pacific China Singapore Tel. +86 21 68882900 Tel. +65 6463 3933 Fax +86 21 58826708 Fax +65 6462 wwww.abspumps.comQui pati2122 facissederae hor www.absgroup.com www.absgroup.com 4 Maintenance 230213 GB 09.05 Service Scanpump reserves the right to alter specifications due to technical developments. Every agitator sold by Scanpump comes with a process guarantee, which means that you will achieve your desired results or we will fix or replace your agitator at our expense. The guarantee is based on mutually understood and agreed upon terms in accordance with design specifications. The benefit to our customers is total satisfaction with absolutely no risk! | Pumps | Mixers | Aeration | Controls | Services | SCANPUMP SCABA AGITATORS. TOP-MOUNTED AND SIDE-MOUNTED AGITATORS FOR INDUSTRIAL PROCESSES. www.scanpump.com SCANPUMP SCABA AGITATORS Scanpump is a specialist in stirring applications for the process, water and waste, and paper industry, wherever a liquid is to be mixed with another liquid, or with particles or gas. We have been supplying agitators to all corners of the world and for a wide variety of stirring processes. The inhouse calculation programs that we have developed have made us known for our ability to produce a reliable solution to virtually any type of stirring problem. The software, in combination with our patented agitator impellers, enable us to offer economically beneficial process solutions. Our experience and expertise enables us to offer process guarantees, which we have been doing for many years. Scanpump conforms to the ISO9001 quality assurance standard, which ensures reliable reli deliveries and high quality. Our salesmen offer a comprehensive service including advise on selections prior to order placement and a good after sales service. In consultation with your specialists, our highly trained salesmen analyze your basic conditions and needs. Alternative solutions are then discussed. Our calculation programs allow for unlimited variation of tank sizes, media data, agitator impellers, speeds and shaft combinations. In order to maintain the necessary high standard of our process expertise, we continually run research projects in our laboratory. We also undertake tests on customer products. Modern computerized machine tools are used in the production of our agitators. 2 SCANPUMP SCABA TOP ENTERING AGITATORS. The agitators are of a robust, modular design and can be combined with various types of drive units, seals and impellers. Due to this flexibility, the agitators can be adapted optimally to the needs of the process. Motor Drive unit The drive unit selected is determined by the pro- • Power ratings: 0.12 kW - 250 kW cess requirements and the customer’s wishes. The agitator can be equipped with gears, paral- • Electric • Hydraulic lel shaft gears, bevel gears or V-belt drives. • Pneumatic Pedestal modul The shaft coupling in the pedestal module provides the connection between the drive and the agitator shaft. Sleeve and flange couplings are standard. Radially split couplings are used for special applications. The pedestal module is equipped with a double spherical roller bearing with adapter sleeve. For a V-belt drive and certain special applications, an extra shaft bearing is built into the pedestal module. The SCABA shaft bearing can be used as an alternative. This enables the bearing to be changed without the need for removing the shaft. • Flange coupling • Sleeve coupling • Radially split coupling • Double spherical roller bearings • Patented bearing for simplified bearing change Housing for shaft seal This is equipped with a suitable seal. The con- • Stuffing box necting flange of the housing can be supplied • Single mechanical seal • Double mechanical seal in different sizes. • TH and TS seals • Labyrinth seal Shaft coupling The agitator shaft is equipped with one or more • Flange coupling shaft couplings, if necessary. The couplings are • Threaded coupling of flange type, although if the hygienic requirements are strict, threaded shaft couplings can be supplied instead. Agitator impeller To suit specific applications we offer a wide range of agitator impellers. Series VP Series KP Series VVP 3 Series VVT Shaft seals for top entering agitators The shaft seals are designed to maintain the required pressure in the tank or to prevent leakage through the shaft entry. Seals are also used to prevent impurities from entering the tank, or to prevent damage to the agitator by splashing or by vapour from the process liquid. Mechanical seal Adapted to meet the customer’s requirements on performance and the preferred seal supplier. The seal housing can be designed to allow the seal to be changed without removing the agitator from the tank. Stuffing box seal The lantern ring, usually included, serves as a gliding bearing and increases the useful life of the seal. The shaft is often equipped with a wear sleeve. • • • • • Double or single design Dry or liquid lubricated Split seal Liquid-cooled seal housing Cartridge seal • 2 - 5 packing plaits • Liquid or grease lubricated TH seal Hygienic seal designed to prevent the ingress of oil and impurities into the process liquid. Has a labyrinth function. TS seal Lip seal designed to prevent the ingress of impurities into the process liquid. Protects the agitator from splashing and from attack by the vapour in the tank. Labyrinth seal Seal for low-pressure processes. Particularly suitable for digesters. The height of the water trap is determined by the pressure inside the tank. 4 • Can be equipped with level control in the labyrinth. • With or without facilities for changing the shaft bearing with the agitator remaining on the tank. Scanpump Scaba impellers Scaba uses their own patented or designed registered impellers. Combined with our extensive design knowhow, these impellers produce the best possible process results at the lowest possible energy cost. The widespanning range of impellers enable us to select the optimum element for each individual application. SHP1 Our high-flow propeller which is acknowledged for its energy-efficiency and effectiveness. It is just as effective on difficult suspensions and reactions as it is on homogenizing and mixing. Intended for viscosities up to 50 000 mPas. SHP18 A registered-design development of the SHP1. Offers better effectiveness at lower viscosities. Low weight allows for lighter shaft design. SHPD Double-acting propeller for high viscosities, up to paste consistency. Also suitable for very gentle stirring. Due to the double-acting function, the liquid is pumped both downwards and upwards. Applications • • • • • Mixing Homogenizing Suspensions Reactions Medium-high viscosities • • • • Mixing Homogenizing Suspensions Low viscosities • • • • Mixing Homogenizing Very high viscosities Gentle stirring SRGT • Gas dispersion Patented turbine intended for gas • Three-phase systems dispersion. Due to its design, the power demand is constant at varying gas flows. Performs very well also on three-phase systems comprising liquid - gas - particles. Other agitator elements Our range also includes impellers of conventional type. 5 • Supplement to our own impellers SCANPUMP SCABA SIDE ENTERING AGITATORS The agitators are of a robust modular design and can be combined with various types of drive units, seals and impellers.This flexibility enables the agitator to be adapted optimally to the process requirements. Housing with shaft bearing A range of housings are used, and these can be adapted to most drive units. Housing for shaft seal Side entering agitators are always equipped with shaft seals. The housing is designed to accommodate either a stuffing box or a variety of optional mechanical seals. The connecting flange of the housing can be delivered in different dimensions. Agitator propeller The SCABA SHP1 or SHP18 high-flow propeller is used to generate good axial flow. Gear-driven agitator series Designed for heavy duty as well as light duty. The gear boxes are of standard brand, which simplifies service and ensures good availability of spare parts. The gear boxes, seals and bearings can be serviced and maintained with the agitator remaining the tank. One double spherical roller bearing with adapter sleeve. The shaft bearing has a theoretical operating life of 100 000 hours. Designed for power ratings ranging from 0.12 kW to 110 kW. Can also be equipped with standard IEC foot-mounted or flange motors. Series SVPT Series SVVPT 6 Series SFVPT Scanpump Scaba SKPT series of V-belt driven agitators Specially designed for heavy duty. Seals and bearings can be serviced and maintained with the agitator remaining in the tank. Two double spherical roller bearings with adapter sleeve with a theoretical operating life of 100 000 hours. Standard type of V-belt drive which is easily adjustable. Designed for power ratings ranging from 2.2 kW to 250 kW. Shaft seals for side entering agitators The shaft seals are designed to maintain the required pressure in the tank or to prevent leakage through the shaft entry. Stuffing box Double mechanical seal 7 Single mechanical seal SERVICE, MAINTENANCE AND RELIABLE DELIVERIES Scanpump Scaba agitators are in service in many types of industrial processes in most of the world’s countries. The agitators are designed to simplify service and maintenance. As a result, the work is easy to plan and execute. The procedure is described in detail in our service instructions. 231634 GB 01.06 Scanpump reserves the right to alter specifications due to technical changes. Quality assurance, dynamic testing and pre-delivery inspection are included as natural elements in our efforts to maintain our leading position as supplier of agitators for optimized process economy. Main office Sweden ABS Scanpump AB Tel. +46 31 83 63 00 Fax +46 31 16 79 14 info@scanpump.com www.scanpump.com Subsidiaries Denmark ABS Scanpump A/S Tel. +45 48 17 11 10 Fax+45 48 17 19 11 info@scanpump.com www.scanpump.com Subsidiaries, ABS Group Austria Finland Tel. +43 2236 642 61 Tel. +358 7 5324 0300 Fax +43 2236 642 66 Fax +358 9 55 80 53 www.absgroup.com www.absgroup.com Asia Pacific China Singapore Tel. +86 21 68882900 Tel. +65 6463 3933 wwww.abspumps.comQui pati facissederae Faxhor +86 21 58826708 Fax +65 6462 2122 www.absgroup.com www.absgroup.com France ABS Scanpump AB Tel. +33 4 72 31 00 06 Fax +33 4 78 05 57 74 info@scanpump.com www.scanpump.com Germany ABS Scanpump AB Tel. +49 6257 9317 0 Fax +49 6257 9317 99 info@scanpump.com www.scanpump.com Norway Tel. +47 67 55 47 00 Fax +47 67 55 47 50 www.absgroup.com South and North America Brazil Tel. +55 41 2108-8100 Fax +55 41 3348 1879 www.absgroup.com USA Tel. +1 203 238 2700 Fax +1 203 238 0738 www.absgroup.com Great Britain ABS Scanpump AB Tel. +44 1293 744 836 Fax +44 1293 543 392 info@scanpump.com www.scanpump.com The Netherlands ABS Scanpump AB Tel. +31 651 08 21 25 Fax +31 523 27 04 71 info@scanpump.com www.scanpump.com